When I update wallet version, do I need manually uninstall the older version and then install the newer version on my PC or would the wallet update itself automatically?When I change to a new PC how would I access my fund, do I just need to install the wallet and then enter the recovery seed??

When I update wallet version, do I need manually uninstall the older version and then install the newer version on my PC or would the wallet update itself automatically?When I change to a new PC how would I access my fund, do I just need to install the wallet and then enter the recovery seed?

I think each PC will have its own settings for install/uninstalls, but you can't go wrong uninstalling the old version prior to installing the newer version.

Yes, you'll just login to the new wallet with your seed, generate a few addresses, and you'll have access to your funds. As long as you save your seed, you can access your funds via any wallet on any device in the world.